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 Multiple Choice QuestionsShort Answer Type

51.

Why does styrene undergo anionic polymerization easily?

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52. Why is cationic polymerization preferred in case of vinylic monomers containing electron donating groups?
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53. Write the monomers used for the preparation of decron.
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54.

Name the monomers for preparing Buna- S

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55.

Give three examples of synthetic rubber.

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56.

What are the monomer units of baketlite?

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57. Why neoprene is non-inflammable?
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58.

Why are neoprene belts used in coal mines?

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59.

What is the difference between the two notations: nylon-6 and nylon-6, 6?


Nylon-6,6 is so called because both monomer such as adipic acid and hexamethylenediamine has six carbon atom each. On other hand caprolactam is only one monomer present in nylon 6 which have six carbon atom. Thus known as nylon 6.
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60.

Name two biopolymers ?

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